Keitai: 5 top tips to get more smartphone battery

Tips, tricks,unicorns and fripperyWelcome to the relaunched of 7 days in phones as Keitai (the Japanese for phone culture) - where instead of telling you what's already happened, we'll be bringing you weekly tips to get the most out of your phone as well as trawling the archives of phone-related nonsense and checking in with our favourite cyborg unicorn.5 tips to improve your smartphone battery life1. Be clean with your appsIf I could give you just one tip, it's this: if your battery has 'sudden